How to pass parameters from lightning component to controller?

How to pass parameters from lightning component to controller?

In this example to learn about to pass parameters from Lightning component to controller vice versa By using component.get (v.attributeName) or component.find (“aura:id”).get (“v.value”) -> pass value from Lightning Component to Controller. By using component.set (“v.attributeName”,value); -> pass value from Controller to Lightning Component.

How to fix Salesforce Lightning error during init?

Learn more Salesforce Lightning: Error during init [Cannot read property ‘apply’ of undefined] Ask Question Asked4 years, 8 months ago Active4 years, 3 months ago Viewed16k times 0 1 I’m stuck with a Lightning component that doesn’t render.

Why do I get a lightning error during init?

I’m stuck with a Lightning component that doesn’t render. I get a strange error immediately: This page has an error. You might just need to refresh it. Error during init [Cannot read property ‘apply’ of undefined]. I’m stuck now for a long time and can’t figure out what is wrong with the code.

Where to turn off caching in Lightning component?

Once you turn off caching, you will see the changes immediately. The setting to enable/disable caching is under Session Settings in setup. The Lightning Component bundle controller, helper, and renderer are JavaScript, so you can take advantage of that and use console logging.

What kind of logging does Lightning component use?

The Lightning Component bundle controller, helper, and renderer are JavaScript, so you can take advantage of that and use console logging. The easiest type of console logging is to just output some string or value or object. Additionally, there are other console logging methods documented in the Console API.

How to call a server side action in Lightning aura?

The following component contains a button that’s wired to a client-side controller echo action. SimpleServerSideController contains a method that returns a string passed in from the client-side controller.

How to create a server side Lightning controller?

Use the Developer Console to create an Apex server-side controller. Use Apex only if you need to customize your user interface to do more than what Lightning Data Service allows, such as using a SOQL query to select certain records.

What is the Lightning component framework for JavaScript?

What Is the Lightning Component Framework? The framework supports client-side (JavaScript) and server-side (Apex) controllers. An event is always wired to a client-side controller action, which can in turn call an Apex controller action.

How to create pagination in Salesforce Lightning component?

Using Server Side Controller Call for every page. Using Client Side Controller Call for every page by fetching data all at once. This article shares an example on creating pagination in lightning component using server side controller. Load the data from the server in pieces with the queries to fetch X number of records at a time.

Is there way to support multiple selection in Lightning?

Multiple selection is currently not supported. To support multiple selection, use lightning:dualListbox instead. This component inherits styling from select in the Lightning Design System. You can define a client-side controller action to handle various input events on the dropdown list.

How to set array of options in Lightning?

Use an attribute to store and set the array of option value on the component. The following component calls the client-side controller to create options during component initialization. In your client-side controller, define an array of options and assign this array to the items attribute.

Why is lightning not able to read data?

I am getting results into the attribute, but lightning:select is not able to read the data. I assume that is because it cannot make sense of the label:value pair since I am passing an object? If anyone could even just point me to a good example of how to do this I would be appreciative.